Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD5TH callsign genealogy
Currently held by JOHNSTON, CHARLIE
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by AD5TH's current licensee, walking backwards.
- JOHNSTON, CHARLES TMSgranted 1996-09-06cancelled 2004-12-16
- KC7LDWno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AD5TH.
- JOHNSTON, CHARLIECOgranted 2005-03-01cancelled 2017-05-23